Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz
Hero image 0 of Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz, 0 of 6

Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz

4.1 stars out of 574 reviews
(4.1)|
574 ratings

Key item features

  • Carbon Reduction: Specifically formulated to reduce carbon build-up and clean vital components like catalytic converters, DPF filters, and oxygen sensors
  • Emission Control: Reduces hydrocarbon emissions on gas engines by up to 50%, helping your vehicle meet stringent smog and emissions standards
  • Fuel Efficiency: Cleans fuel injectors and cylinder heads, leading to improved fuel combustion, better mileage, and restored engine power
  • Performance Restoration: Restores optimal performance and helps resolve common check engine light codes like P0420, P0430, P0171, P0174, P0300, and P0401
  • Easy Application: Easy to use - simply pop, pour and go every 3 months
  • Versatile Compatibility: Safe for gasoline, diesel, e85/flex fuel, and hybrid engines
  • Fuel Integrity: Does not alter fuel composition
  • EPA Approved: EPA Approved Patented Formula is 50 state legal
  • Convenient Design: Original long nose bottle is capless gas tank compatible
Generated by AI
Current price is $27.95$1.75/fl oz
Price when purchased online
  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $27.95
One-time purchase $27.95

How do you want your item?

Try 30 days for just $1! Choose annual plan at checkout.
How do you want your item?
Columbus, 43215
Arrives by Today
.
Order within 7 hr 49 min
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible

More seller options (5)

Starting from $27.95
walmart plus

Try Walmart+ for just $1 & get a year for $75

T&C apply.

About this item

Product details

Specifications

Warranty

Warnings

Customer ratings & reviews

4.1 out of 5 stars
stars574 ratings215 reviews
How item rating is calculated

Customer photos

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 215 reviews

Sep 25, 2024
Walmart customer
Item details
Count: 1
5 out of 5 stars review

Verified Purchase

IT WORKS

This stuff really works. I was stressing from driving with an expired inspection sticker because every time I shut the light off it would come back on within 20 miles. I read about this and gave it a try. I followed directions and put over 100 miles on to clear the codes. It PASSED inspection. That was in march. It is now September an still no 02 sensor code.

Helpful?2X684WFIDQCM135378546
Jul 18, 2025
Henry
Item details
Count: 1
5 out of 5 stars review

Verified Purchase

Cheap fix

Was starting to smell sulfur and immediately thought of my cats being clogged. Saw this on line, read good reviews. Put it in my SUV and after a couple of days no more sulfur smell

Helpful?2X684WFIDQCM135378546
Dec 12, 2024
Amanda
Item details
Count: 1
5 out of 5 stars review

Verified Purchase

It works!

My car had been throwing codes about the catalytic converter, so I did some research and this cleaner was suggested to use before I replaced the converter. Since I used it I have had no more codes.

Helpful?2X684WFIDQCM135378546